can stripped spark plug threads be fixed?

[markblack172]

as above
my sport has blown a plug out of the threads can this be fixed or will i have to strip the head off and replace it?

 

[Bazzon]

helicoil or whatever u call em

 

[markblack172]

helicoil or whatever u call em

not sure if they would work

 

[smila]

you can tap the old hole, buy apart that fits in original hole and then plug fits in the new part if you get what imean?

 

[Bazzon]

Our track car had a stripped plug in No4, we managed to fix it with a coil and its been spot on since.

 

[markblack172]

you can tap the old hole, buy apart that fits in original hole and then plug fits in the new part if you get what imean?

sort of, but that sounds like a helicoil to me tho

 

[Gumby]

helicoil or whatever u call em

not sure if they would work

There's no reason why it shouldn't

 

[markblack172]

Our track car had a stripped plug in No4, we managed to fix it with a coil and its been spot on since.

did you use a helicoil?
and what did you do about the filings that dropped into the chamber?

 

[Bazzon]

If all else fails, a bit of Locktight and push it in try it

 

[markblack172]

not sure if they would work

There's no reason why it shouldn't

dont helicoils have a bottom on them or am i thinking of something else?

 

[Bazzon]

Helicoils basically u push em in and the make new threads.

 

[markblack172]

If all else fails, a bit of Locktight and push it in try it

i was thinking of trying that first

it felt a little iffy when i re fitted the plugs yesterday but thought it would be fine

 

[markblack172]

Helicoils basically u push em in and the make new threads.

will the leg on the bottom of the helicoil foul the plug electrode?

 

[sideways danny]

http://www.timesert.com/

the right way to do it

 

[markblack172]

http://www.timesert.com/

the right way to do it

any one know what size helicoil or time sert i'd need?

 

[sideways danny]

M14x1.25 IIRC

 

[markblack172]

M14x1.25 IIRC

thanks a lot guys i'l try one of those first

by the way what does IIRC mean?
just me being dumb

 

[sideways danny]

if i recall correctly

to be honest it's not a thread size i've had to remember too often.

 

[markblack172]

if i recall correctly

to be honest it's not a thread size i've had to remember too often.

thanks for that
i've seen that size most of the tme on ebay for the kits
do you think this will be ok?

http://cgi.ebay.co.uk/14mm-SPARK-PL...39:1|66:2|65:12|240:1318&_trksid=p3286.c0.m14

 

[sideways danny]

looks spot on. remember to put the piston on the effected cylinder at the top, put plenty of grease on the tap (to catch swarf) and turn the engine over with no plugs in to blow any bits of swarf out before fitting the new insert

 

[markblack172]

looks spot on. remember to put the piston on the effected cylinder at the top, put plenty of grease on the tap (to catch swarf) and turn the engine over with no plugs in to blow any bits of swarf out before fitting the new insert

thanks thats saved me a lot of pain and money stripping the head
i'm off to bed now i'll be able to sleep :sleepy:

 

[markblack172]

i got a kit off ebay for £50 and it's sorted and i have the bits to do another 3 plugs

cheers guys for all your help